Matter creation is the process inverse to particle annihilation. It is the conversion of massless particles into one or more massive particles. This process is the time reversal of annihilation. Since all known massless particles are bosons and the most familiar massive particles are fermions, usually what is considered is the process which converts two bosons (e.g. photons) into two fermions (e.g., an electron–positron pair).
Read more about Matter Creation: Photon Pair Production
Famous quotes containing the words matter and/or creation:
“Were that enough, bone, blood, and sinew,
The twisted brain, the fair-formed loin,
Groping for matter under the dog’s plate,
Man should be cured of distemper.
For all there is to give I offer:
Crumbs, barn, and halter.”
—Dylan Thomas (1914–1953)
“We hold these truths to be sacred and undeniable; that all men are created equal and independent, that from that equal creation they derive rights inherent and inalienable, among which are the preservation of life, and liberty, and the pursuit of happiness.”
—Thomas Jefferson (1743–1826)